应用程序使用spring和c3p0挂起峰值负载

Question

我正在使用c3p0的弹簧应用程序的这些连接设置。 在峰值负载时，应用程序挂起。在用户上传xml文件和应用程序的峰值负载数量解组并保存在数据库中时，文件非常大，通常需要20到30秒才能完成。应用程序开始花费更多时间（负载启动2分钟后），从40s到200s完成整个过程，并在峰值负载3分钟后停止响应。

连接池设置

INITIAL_POOL_SIZE=25 NUM_HELPER_THREAD=6 ACQUIRE_INCREMENT=5 MAX_IDLE_TIME_EXCESS_CONNECTIONS=0 PREFERRED_TEST_QUERY=SELECT 1 FROM DUAL IS_TEST_CONNECTIONON_CHECKIN=TRUE IS_TEST_CONNECTIONON_CHECKOUT=FALSE IS_DEBUG_UNRETURNED_CONNECTION_STACK_TRACES=TRUE IDLE_CONNECTION_TEST_PERIOD=300 #MaxPoolSize 
MAX_CONNECTIONS=150 MIN_POOL_SIZE=25 MAX_STATEMENTS_PER_CONNECTION=100 MAX_STATEMENTS=1000
IDLE_CONNECTION_TEST_PERIOD=300 MAX_CONNECTION_AGE=1944000

请建议!!

使用acquireIncrement初始化C3p0 - ＆gt; 5，acquireRetryAttempts - ＆gt; 30，acquireRetryDelay - ＆gt; 500，autoCommitOnClose - ＆gt; false，automaticTestTable - ＆gt; null，breakAfterAcquireFailure - ＆gt; false，checkoutTimeout - ＆gt; 0，connectionCustomizerClassName - ＆gt; null，connectionTesterClassName - ＆gt; com.mchange.v2.c3p0.impl.DefaultConnectionTester，dataSourceName - ＆gt; 2upg5n90m6dhnua9spyw | 6ae354b6，debugUnreturnedConnectionStackTraces - ＆gt;是的，描述 - ＆gt; null，driverClass - ＆gt; oracle.jdbc.driver.OracleDriver，factoryClassLocation - ＆gt; null，forceIgnoreUnresolvedTransactions - ＆gt; false，idleConnectionTestPeriod - ＆gt; 300，initialPoolSize - ＆gt; 25，jdbcUrl - ＆gt; XXX，maxAdministrativeTaskTime - ＆gt; 0，maxConnectionAge - ＆gt; 1944000，maxIdleTime - ＆gt; 0，maxIdleTimeExcessConnections - ＆gt; 0，maxPoolSize - ＆gt; 150，maxStatements - ＆gt; 1000，maxStatementsPerConnection - ＆gt; 100，minPoolSize - ＆gt; 25，numHelperThreads - ＆gt; 6，numThreadsAwaitingCheckoutDefaultUser - ＆gt; 0，preferredTestQuery - ＆gt; SELECT 1 FROM DUAL，propertyCycle - ＆gt; 0，testConnectionOnCheckin - ＆gt; true，testConnectionOnCheckout - ＆gt; false，unreturnedConnectionTimeout - ＆gt; 0，usesTraditionalReflectiveProxies - ＆gt;错误的]

配置：

  <bean id="dataSourceFactory" class="com.common.CLDataSourceFactory"/>
    <bean id="dataSource" factory-bean="dataSourceFactory" factory-method="createInstance"/>

来自CLDataSourceFactory的代码

private static final CLDataSource INSTANCE = new CLDataSource();        
private static final Logger LOGGER = Logger.getLogger(CLDataSourceFactory.class);
/** This is the JVM shutdown hook to close the data source. */
static {
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            try {
                LOGGER.info("JVM shutdown hook [CLSourceFactory's close data source] has been initiated.");
                INSTANCE.close();
                LOGGER.info("CLDataSourceFactory's close data source has been completed.");
            } catch (Exception ex) {
                LOGGER.error("Exception occured while CLDataSourceFactory's close data source: " + ex, ex);
            }
        }
    });
}   

public CLDataSource createInstance() {
    return INSTANCE; 
}